Insulate Cathedral Ceiling With Ridge Vent

You should also try and avoid having the ventilation left to allow the shingles to remain cool in summer.

Insulate cathedral ceiling with ridge vent.

When renovating an older home whose roof rafters are only 2x6 really 5 1 2 x 1 5 in dimension the available space for insulation and ventilation is limited therefore limiting the options for a combination of good under roof ventilation and high insulation r values in the cathedral ceiling. This has long been known to be a myth and the roof ventilation of cathedral ceiling insulation has absolutely no affect on the temperature of your shingles or tiles. Cathedral ceilings are a feature in many homes that add to value to the house because the high ceiling tends to make rooms look larger. In homes with flat ceilings and unfinished attics insulation doesn t interfere with fresh air entering soffit vents located in the eaves and exiting near the roof peak.

Ridge vents the cool dry air that enters the soffit must have a. In a vaulted ceiling. Flat roof cathedral ceiling we re going to give it a try. The right way to insulate attics and cathedral ceilings with batts using certain t.

Existing is a fourteen year old roof with 2 of closed cell roofing foam with an acrylic elastomeric coating. I want to cut the kneewall sheathing to fit between the roof rafters and up to rafter baffles seal any air intrusion points into the stud cavity with foam but still allow soffit to ridge ventilation. Our plan is to put rigid board up between the 2x4 s caulk the edges and then hang sheetrock. Below is 1x decking and 2x4 rafters.

This is the tough part i encounter where the kneewalls meet the vaulted ceiling and roof. Insulating an unvented cathedral ceiling. Once the rafter vents are in place you can install batt or rigid foam insulation and then finish the vaulted ceiling with drywall. Our summers in northern california can be pretty hot amp i am looking to add more insulation to my attic the attic floor is insulated already there is a ridge vent there are 2 gable vents 1 has a fan there are 2 between rafter vents there are no soffits or eaves so no vents there.